package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.format.annotation.DateTimeFormat;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        // 后期需要进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /*
    新增员工
     */
    @Override
    public void addEmp(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();

        // 对象属性拷贝
        BeanUtils.copyProperties(employeeDTO, employee);

        //为创建时间和修改时间 设置值
     //   employee.setCreateTime(LocalDateTime.now());
     //   employee.setUpdateTime(LocalDateTime.now());

        // 状态
        employee.setStatus(StatusConstant.ENABLE);

        // 密码
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));

     //   employee.setCreateUser(BaseContext.getCurrentId()); // 当前登录的员工id
     //   employee.setUpdateUser(BaseContext.getCurrentId());  //BaseContext.getCurrentId()

        employeeMapper.addEmp(employee);
    }


    /*
    分页查询
     */
    @Override
    public PageResult page(EmployeePageQueryDTO query) {
        PageHelper.startPage(query.getPage(), query.getPageSize());
        Page<Employee> page = employeeMapper.page(query);
        return new PageResult(page.getTotal(), page.getResult());
    }

    /*
      启用禁用
     */
    @Override
    public void StartOrStop(Integer status, Long id) {
        Employee e = Employee.builder()
                .id(id)
                .status(status)
            //    .updateTime(LocalDateTime.now())
            //    .updateUser(BaseContext.getCurrentId())
                .build();
        employeeMapper.update(e);


    }

    // 根据Id查询员工信息
    @Override
    public Employee getById(Long id) {
        Employee employee = employeeMapper.getById(id);
        return employee;
    }

    // 修改员工信息
    @Override
    public void update(EmployeeDTO employeeDTO) {
        Employee employee = new Employee();
        BeanUtils.copyProperties(employeeDTO,employee);

        // 给属性赋值
       // employee.setUpdateTime(LocalDateTime.now());
       // employee.setUpdateUser(BaseContext.getCurrentId());

        // 直接使用共同修改MapperxmlSql
        employeeMapper.update(employee);
    }
}
